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1 Products availableWe offer a complete product range of Vacuum Tray Dryer, Rotary Double Cone Vocuum Dryer, Fluid Bed Dryer and Rotary Double Cone Vacuum Dryer
ge from 3 trays to 96 trays
Application:Used for drying of high grade temperature and oxygen sensitive products. Highly suitable for drying hygroscopic substances which are dried to very low residual moisture content levels. Frequently vacuum drying cabinets are the sole possibility for drying lumpy, glutinous products or products of low pomposity. We are manufacturer, supplier and exporter of vacuum tray dryer as per ISI guidelines and users requirements since 1990 from Mumbai to India and all over the globe.
Vacuum tray dryer is the most commonly used batch dryer. They are either box shaped or cylindrical shaped loaded and unloaded via a door. Inside are several heating plates mounted one above the other on which the product is placed in trays .The Top of both heating plates (Shelves) and the bottom of heating shelves trays should be as smooth as possible to permit optimal heat transfer between plates and product. The medium flowing through the heating plates is water, steam, or thermal oil. The distance between the heating plates is determined primarily by the surface loading and the foaming of the product. To avoid retrograde condensation, the cabinet walls are indirectly preheated by limpet coil provided on the outer side of the body (Optional). Only after all the product trays reach the same temperature, the cabinet is evacuated and drying can start. (The preheating phase is very important in order that the drying curve and the foaming of product are identical throughout the cabinet). During the main drying phase the vacuum is in the range of 40 to 80 mbar abs and in the final drying phase vacuum of only few mbar abs are reached. The vacuum can be controlled through PLC in order to reduce the drying cycle. Nitrogen can also be purged in the VTD according to the product.
5 Litres to 5000 Litres
Application:Rotary double cone vacuum dryers are suitable for drying & mixing powder (raw materials), pharmaceutical materials, crystalline products, insecticides, pesticides, food products & also for heat sensitive products. The equipment can also be used as rotary evaporator. Promas Engineers is a certified company for manufacturer, supplier and exporter of rotary double cone vacuum dryers according to ISI guidelines and users requirements since 1990 from Mumbai to India and all over the world.
Raw material is charged in batches & is subjected to indirect heating while at the same time undergoing rotary motion of the cone assembly. The conical shape of the dryer ensures efficient circulation of hot liquid heating media. Drying takes place when heat flows from outer cone through a jacket, and vacuum is applied in the inner cone. The drying operation is based on the principle that water or other volatile product moves from a zone of low pressure. This is accomplished by warming the product to be dried to raise the vapour pressure of the absorbed or free liquid by vacuum or by sweeping it with Air or Nitrogen current. Thus the essential conditions for effective drying are achieved by uniform heat transfer throughout the batch and rapid removal of the vapour. The vacuum is applied gradually with PLC control by throttling.
Promas Engineers Rotary Double Cone Vacuum Dryer is unique in removing complete water, or other solvent from wet powders coming from a filtration unit or a centrifuge. It can be used as an effective dryer, fast mixer & blender or homogenizer. It can also be used as a granulator.
The drying time is substantially reduced because of high-speed choppers, which help the evaporation of the solvent or moistures. Chopper speed can be controlled by a frequency drive. Dryer are manufactured as per US-FDA Standards & Regulations.
5 kilograms to 300 kilograms
Application:To dry material by fluidisation with hot and or dehumidified air.
The atmospheric air is sucked in the dryer through 5/10 micron filter by an efficient dynamically balanced fan driven by an electric motor. The clean air then passes over the electric heaters steam or oil radiator provided with temperature controller. The hot air passes through the product and fluidisation dries the product. Dryer is provided with dehumidifier (Chilled water system) at the inlet of the dryer so as to dry the product at low temperature under fluidized condition. The blower speed is controlled by A. C. frequency drive so as to control the fluidisation avoiding choking of the filter bag. A raking system provided to avoid lump formation in the container to achieve uniform fluidisation & uniform drying. A model with complete automation and PLC, automatic bag shaking and with mimic is also offered. Promas Engineers is manufacturer, supplier and exporter of fluid bed dryers according to ISI guidelines and users requirements since 1990 from Mumbai to India and all over the world.
Rabale, Navi Mumbai, Maharashtra 